ASROCK Z68 Gen3 not booting and turning off-on-off
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=10224
Printed Date: 06 Aug 2025 at 12:53pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: ASROCK Z68 Gen3 not booting and turning off-on-off
Posted By: sixeleven
Subject: ASROCK Z68 Gen3 not booting and turning off-on-off
Date Posted: 21 Nov 2018 at 11:33pm
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Hi there Hope to find some help for my problem: I've got a Z68 Gen3 Board with a Intel i7 2700K, which was running from 2012 to now without any problems. Two days ago,windows was not longer usable, the system was extremly slow and I tried to restart. For the next 5 attempts, it turned into loading windows, but extremly slow and didnt finish it. Now, the new situation is, that its not longer possible to load BIOS or something, the system turns off after 3 seconds, then restards and so on - an endless loop. The LED-panel shows 55, which should be something like "no RAM". Switched the CPU to a i7 3770, same problem - so its not the CPU. Maybe the power supply (Be Quiet BQT P9-650) or the board - or really the RAM? (4x4 GB) Tried to change the RAM, same problem. Any ideas what to do? Thanks for some help and best Daryl |
Replies:
Posted By: sixeleven
Date Posted: 22 Nov 2018 at 12:02am
| Exact mobo type is: Z68 Extreme 7 Gen 3 |
Posted By: sixeleven
Date Posted: 22 Nov 2018 at 12:22am
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Tried to start without RAM. System shows error 53 (which is correct) and is still running, so the power supply seems to be ok. Ok, mainboard or RAM? |
Posted By: sixeleven
Date Posted: 22 Nov 2018 at 12:46am
| BIOS battery is ok. Removed it installed a new one. Cleared CMOS. |
Posted By: Xaltar
Date Posted: 22 Nov 2018 at 4:22am
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Have you ruled out the PSU? As PSUs get older they often degrade and rails go out of tolerance, that could cause the symptoms you described. It should be a cheap option to rule out, even a cheap PSU should be enough to get you to the post screen if the old PSU went bad. If that checks out fine then your last option is the board or RAM. ------------- 
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Posted By: sixeleven
Date Posted: 23 Nov 2018 at 10:10pm
| New PSU and RAM installed, same problem. Looks that it is the board :-( |
Posted By: honkytonk
Date Posted: 29 Nov 2018 at 3:53pm
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Just some thoughts. Is the board out of the case on a box? using IGPU or PCIe GPU? Try new CMOS battery, check for swollen caps, chips that may have wires shorted together or broken, burnt traces, mashed or shorted USB port and pci/e slot pins, corrosion? A bad HHD can make a system boot slow or not at all. BIOS beeps? try PS/2 keyboard/mouse. Google search for similar issue with that board? ------------- ASRKZ77Extm4P2.9,i73770K,32GB2400Corsair,GTX780TiKingpin,XiFiTitanium,4xOCZVertex2-64GB-Raid0,2xKingstonHyperX-240GB-Raid0,UEFI-Dualboot-Win10/Win7Ult64 |